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PC parts / Power supplies

be quiet! Pure Power 13 M 550W
Power
550W
Efficiency
80 PLUS Platinum
Modular cables
Fully modular
ATX version
ATX 3.1

52 of 66 fields known.

At a glance

All specs

SourceCalculated

General

Announced
Not available
Predecessor
Not available
Successor
Not available
Launch price (US)
Not available
Markets
Not available
Form factor
ATX9Measurementcybenetics.com/evaluations/psus/2851Read 16 October 2026DUT Information: Type ATX12V. The back face is 150 x 86 mm, the ATX size.
Built by (OEM)
FSP9Measurementcybenetics.com/evaluations/psus/2851Read 16 October 2026DUT Information: OEM/ODM FSP. Parts description: Manufacturer (OEM) FSP.

Power

Full power rated up to
Not available
+3.3V and +5V combined power
120W3Retailer pageparadigit.ie/be-quiet-pure-power-13-m-550w/21819494/productRead 16 October 2026Combined power +3.3V 120 W and +5V 120 W, printed per rail. Cybenetics and Hardware Busters show 120 W combined.9Measurementcybenetics.com/evaluations/psus/2851Read 16 October 2026Power specifications table: one 120 W cell for 3.3V and 5V, with 20 A each.
Alternative low power mode (ALPM)
Yes9Measurementcybenetics.com/evaluations/psus/2851Read 16 October 2026Temperature and Compliance Info: ALPM (Alternative Low Power Mode) compatible, checked.

Certifications

80 PLUS rating
80 PLUS Platinum11Certification listclearesult.com/80plus/sites/80plus/files/manufacturer-certificate/BE%20QUIET_L13-M-550W_550W_SOCE%207799_Report.pdfRead 16 October 202680 PLUS certificate for model L13-M-550W: Platinum at 115 V, type ATX 3.1, ID 7799, test date 2025-04-16. The sample serial 024EUS4510000032 carries the same 024EU model code as the Cybenetics sample of this unit. The maker and retailers claim 80 PLUS Gold.
Cybenetics efficiency at 230V
Cybenetics Platinum9Measurementcybenetics.com/evaluations/psus/2851Read 16 October 2026ETA Platinum at 230V (badge image 28, Platinum 230v).
Cybenetics noise at 115V
A++9Measurementcybenetics.com/evaluations/psus/2851Read 16 October 2026LAMBDA A++ at 115V (badge image 19). Hardware Busters prints A++ for both voltages.
Cybenetics noise at 230V
A++9Measurementcybenetics.com/evaluations/psus/2851Read 16 October 2026LAMBDA A++ at 230V (badge image 31, A++ 230v).

Measured

Average efficiency at 115V (measured)
90.603%9Measurementcybenetics.com/evaluations/psus/2851Read 16 October 2026Average over more than 1450 load combinations at 115V. Received May 9, 2025, tested Jun 16, 2025. Ambient 28-32 C. EU sample.
Average efficiency at 230V (measured)
92.463%9Measurementcybenetics.com/evaluations/psus/2851Read 16 October 2026Average over more than 1450 load combinations at 230V.
Light-load efficiency at 115V (measured)
69.68%9Measurementcybenetics.com/evaluations/psus/2851Read 16 October 2026Efficiency at 2% load at 115V. The unit is above 500 W, so the 2% load applies. At 230V it is 71.581%.
Average power factor at 115V (measured)
0.9879Measurementcybenetics.com/evaluations/psus/2851Read 16 October 2026Average over more than 1450 load combinations at 115V. At 230V it is 0.957.
Average noise at 115V (measured)
6dB(A)9Measurementcybenetics.com/evaluations/psus/2851Read 16 October 2026Average over more than 1450 load combinations at 115V, ambient 28-32 C, Bruel and Kjaer 2270 G4 sound analyzer. The 230V average is also 6.00 dBA.
Noise at full load at 115V (measured)
8.7dB(A)9Measurementcybenetics.com/evaluations/psus/2851Read 16 October 2026Typical load tests at 115V, 100% load row: 8.7 dB(A) at 687 rpm fan speed, intake about 45.5 C. At 230V it is 7.6 dB(A) at 662 rpm. The unit is semi-passive, so the fan is at 0 rpm up to 40% load at 115V.
Standby power with no load at 115V (measured)
0.0434W9Measurementcybenetics.com/evaluations/psus/2851Read 16 October 2026Standby power consumption at 115V with no load on +5VSB: 0.0434 W. At 230V it is 0.1319 W.
Hold-up time (measured)
25.3ms9Measurementcybenetics.com/evaluations/psus/2851Read 16 October 2026Hold-Up Time and PWR_OK Signal: hold-up time 25.3 ms, AC loss to PWR_OK 23.4 ms, PWR_OK inactive to DC loss 1.9 ms, at maximum continuous load. The report names no input voltage. A retailer data sheet copy prints 21.68 ms, which is a maker claim and is not stored.
12V ripple at full load (measured)
25.54mV9Measurementcybenetics.com/evaluations/psus/2851Read 16 October 2026Non-accredited. 12V ripple at full load at 115V. At 230V it is 26.53 mV.
12V load regulation (measured)
0.45%9Measurementcybenetics.com/evaluations/psus/2851Read 16 October 2026Non-accredited. 12V load regulation at 115V. The 230V figure is also 0.45%.

Cables and connectors

Cables
ConnectorConnectorsCablesLength to first plug (mm)Wire gaugeRated power (W)
ATX 24-pin (20+4)1155018-22AWGNot available
CPU 8-pin (EPS, 4+4)1165018AWGNot available
PCIe 8-pin (6+2)2250018AWGNot available
12V-2x61160016AWG300
SATA power3150016-28AWGNot available
SATA power2151018AWGNot available
4-pin Molex2151018AWGNot available
CPU (EPS) connectors
1
PCIe 8-pin connectors
2
16-pin GPU connectors
1
SATA power connectors
5
4-pin Molex connectors
2

Fan

Fan mode switch
No10Reviewhwbusters.com/psus/be-quiet-pure-power-13-m-550w-atx-v3-1-psu-reviewRead 16 October 2026Product photos page: at the front side there is no switch to enable or disable semi-passive operation.

Protection and parts

Protections
Over-current (OCP), Over-voltage (OVP), Under-voltage (UVP), Over-power (OPP), Over-temperature (OTP), Short-circuit (SCP), No-load (NLO), Surge and inrush (SIP)4Retailer pageox.ee/en/product/3200915Read 16 October 2026Power protection features: over current, over power, over voltage, overheating, short circuit, surge and inrush protection (SIP), under voltage. NLO comes from the Cybenetics protection tests.5Retailer pagekomputronik.pl/product/975165/zasilacz-pc-be-quiet-pure-power-13-m-550w.htmlRead 16 October 2026Protections: OCP, OPP, OTP, OVP, SCP, SIP, UVP.8Press articlegeektopia.es/es/technology/2025/06/10/noticias/be-quiet-anuncia-la-serie-pure-power-13-m-de-fuentes-atx-3-1-y-pcie-5-1.htmlRead 16 October 2026Lists OCP, OPP, OTP, OVP, SCP and UVP.9Measurementcybenetics.com/evaluations/psus/2851Read 16 October 2026Protection Features (Manufacturer) lists OPP, +12V OCP, OTP, SCP, surge and inrush current protection. Protection tests tick UVP at 90 V and 80 V and NLO, and SIP shows an MOV for surge and an NTC with bypass relay for inrush. OVP is a maker claim that the report does not test.
All-Japanese capacitors
Not available

Monitoring and lighting

Software monitoring
Not available
Software
Not available
Built-in power display
Not available

Dimensions and weight

Front and side, drawn to scale.

Weight
1.65kg(3.6 lb)10Reviewhwbusters.com/psus/be-quiet-pure-power-13-m-550w-atx-v3-1-psu-reviewRead 16 October 2026Technical specifications: 1.65 kg (3.64 lb). The review does not say whether cables are included. Retailers list 2.23 kg, which is most likely the packed weight and is not stored.

In the box

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In the box
Not available

Warranty

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Variants

Each variant lists only what differs from the specs above.

Model numberGTINLaunch price (EU)Markets
BP024EU4260052192160€94.9EU
BP024USNot availableNot availableNot available

Sources

We read 11 sources for this power supply. The numbers match the markers in the sheet.

  1. Read 16 October 2026Backs 3 fields
  2. Read 16 October 2026Backs 15 fields
  3. Read 16 October 2026Backs 10 fields
  4. Read 16 October 2026Backs 8 fields
  5. Read 16 October 2026Backs 6 fields
  6. Read 16 October 2026Backs 3 fields
  7. Read 16 October 2026Backs 3 fields
  8. Read 16 October 2026Backs 4 fields
  9. Read 16 October 2026Backs 29 fields
  10. Read 16 October 2026Backs 8 fields
  11. Read 16 October 2026Backs 1 field

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